CN214361529U - Segmented induction quenching coil and heat treatment equipment - Google Patents

Abstract

The utility model relates to the technical field of heat treatment equipment, in particular to a segmented induction quenching coil and heat treatment equipment, the segmented induction quenching coil comprises at least two sections of hollow heating elements and a connecting unit, the at least two sections of hollow heating elements are arranged at one side of a shaft to be processed and are sequentially connected along the axial direction of the shaft to be processed, the upper end of each heating element is provided with an input port, the lower end of each heating element is provided with an output port, in two adjacent heating elements, the output port of the heating element positioned above is connected with the input port of the heating element positioned below the heating element and the two adjacent heating elements can relatively slide along the radial direction of the shaft to be processed, the connecting unit comprises a first mounting part, a second mounting part and an adjusting component, the number of the heating elements is increased or decreased according to the number of shaft sections of the shaft to be processed, according to the change of the diameter of each section of the shaft, the adjusting component enables the two adjacent heating elements to move along the radial direction of the shaft to be processed, realize the segmentation heating regulation, improve the heating method, improve heating efficiency, reduction in production cost.

Description

Segmented induction quenching coil and heat treatment equipment

Technical Field

The utility model relates to a thermal treatment equipment technical field especially relates to a segmentation induction hardening coil and thermal treatment equipment.

Background

With the increasing popularity of automobiles and the increasing demand of people for automobiles, the manufacturing technology of automobile parts also meets new opportunities and challenges. The mechanical properties such as high surface wear resistance, high yield strength, high tensile strength, and the like are required of the parts such as the input shaft in the transmission and the balance shaft in the balance module, which are core components of the automobile. The induction quenching heat treatment belongs to an important special process in the processing of automobile parts, and can improve various mechanical properties of parts through the integral induction quenching treatment. The induction quenching treatment becomes one of the main heat treatment processes of the automobile parts due to the advantages of high efficiency, low cost and the like.

With the development of the automobile industry and the diversification of the shapes of parts, the design and the manufacture of the induction quenching coil are difficult to develop for the induction quenching process. For example, for shaft parts with large diameter difference among multiple sections of journals, the development of the whole induction quenching coil has a problem that the coils of the corresponding sections of the journals with different diameters need to be debugged for many times. However, the whole induction quenching coil is used as a rigid object, and can only be finely adjusted, and if the distance needs to be adjusted in multiple sections, the cost and the development time are inevitably greatly increased.

Therefore, a segmented induction quenching coil and quenching apparatus are needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a segmentation induction quenching coil can be according to treating the change of processing axle multistage diameter of axle, carries out the segmentation and adjusts induction quenching coil and treats the radial distance between the processing axle, improves the quenching effect, reduction in production cost, and it is convenient to adjust, improves machining efficiency.

Another object of the utility model is to provide a heat treatment equipment, adjustable segmentation response quenching coil with wait to process the radial distance between the axle, improve the quenching effect, reduction in production cost, it is convenient to adjust, application range is extensive.

In order to realize the purpose, the following technical scheme is provided:

a segmented induction quenching coil for induction heating a shaft to be machined, comprising:

the heating device comprises at least two sections of heating elements with hollow interiors, wherein the heating elements are arranged on one side of a shaft to be processed, the heating elements are sequentially connected along the axis direction of the shaft to be processed, an input port is formed in the upper end of each heating element, an output port is formed in the lower end of each heating element, the output port of the heating element positioned above the heating element in two adjacent heating elements is connected with the input port of the heating element positioned below the heating element, and the two adjacent heating elements can relatively slide along the radial direction of the shaft to be processed;

the connecting unit, the connecting unit is equipped with first installed part, second installed part and the adjusting part of first spout in including, first installed part and adjacent two one in the heating member is connected, the one end of second installed part is slided and is located in the first spout, the other end and adjacent two another in the heating member is connected, the adjusting part can make the second installed part is relative first installed part is followed treat the radial movement of processing axle.

As an alternative to the segmented induction quenching coil, the segmented induction quenching coil includes two sections of heating elements, which are respectively:

the first segmented heating element comprises a first body, and the first body is provided with a first input port and a first output port;

second segmentation heating member, including the second body, the second body is equipped with second input port and second delivery outlet, at least part encloses on the lateral wall of second input port and is equipped with the second spout, first delivery outlet inserts from the top down the second input port, the partial outer wall of first body with the internal face looks butt of second spout, and can follow in the second spout treat the radial movement of processing axle.

As an alternative to the segmented induction quenching coil, the adjusting assembly includes an elastic member and an adjusting bolt, the elastic member is disposed between a portion of the first sliding groove, which is close to the side wall of the first body, and a portion of the second mounting member, which is located in the first sliding groove, the elastic member is configured to enable the second mounting member to have a movement tendency away from the first body, a threaded hole is penetratingly disposed on the side wall of the first sliding groove, which is away from the first body, and the adjusting bolt is penetratingly disposed in the threaded hole and abutted against the second mounting member.

As an alternative of the segmented induction quenching coil, a limiting plate is arranged at the tail end of the part, located on the first sliding groove, of the second mounting part, and the width of the limiting plate is larger than the groove width of the first sliding groove.

As an alternative of the segmented induction quenching coil, the first installation part is provided with a first clamping portion, the second installation part is provided with a second clamping portion, and the first clamping portion and the second clamping portion are respectively clamped on the outer wall surface of the first body and the outer wall surface of the second body.

As an alternative to the segmented induction quench coil, the segmented induction quench coil further comprises:

the third sectional heating element comprises a third body, a third input port and a third output port which are communicated with each other are arranged at two ends of the third body, and the third input port is inserted into the second output port of the second sectional heating element;

the fourth sectional heating element comprises a fourth body, a fourth input port and a fourth output port which are communicated with each other are arranged at two ends of the fourth body, and the fourth input port is inserted into the third output port of the third sectional heating element;

the fifth subsection heating member, the fifth subsection heating member includes the fifth body, the both ends of fifth body are equipped with the fifth input port and the fifth delivery outlet that link up each other, the fifth input port with the fourth subsection heating member the fourth delivery outlet is pegged graft.

As an alternative to the segmented induction quenching coil, the heating element is a copper tube with a rectangular channel therein.

As an alternative to the segmented induction hardening coil, the first mounting member and the second mounting member are both made of a plastic material.

As an alternative to the heat treatment equipment, the heat treatment equipment comprises an alternating current power supply and the segmented induction quenching coil as described above, wherein the alternating current power supply is respectively electrically connected with two ends of the segmented induction quenching coil.

As an alternative of the heat treatment equipment, the heat treatment equipment further comprises a cooling circulation device, an output end of the cooling circulation device is communicated with one end of the segmented induction quenching coil, and a return end of the cooling circulation device is communicated with the other end of the segmented induction quenching coil.

Compared with the prior art, the utility model provides a segmentation response quenching coil beneficial effect does: the segmented induction quenching coil comprises at least two sections of heating members, the number of the heating members can be correspondingly increased or decreased according to the number of shaft sections of a shaft to be processed, the adjusting components of the connecting units can enable the corresponding adjacent two sections of heating members to move along the radial direction of the shaft to be processed according to the change of the diameter of each section of the shaft to be processed, the segmented induction quenching coil can be used for shaft parts with large diameter difference of multiple sections of shaft necks, segmented heating adjustment is achieved, the heating mode is improved, the heating efficiency is improved, and the production cost is reduced.

The utility model provides a heat treatment equipment beneficial effect does: according to the change of the shaft diameter of the shaft to be processed, the number of the heating parts is increased or decreased, the heating parts move relatively along the radial direction of the shaft to be processed through the adjusting component, the quenching effect is improved, the production cost is reduced, and the processing efficiency is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments of the present invention will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the contents of the embodiments of the present invention and the drawings without creative efforts.

Fig. 1 is a schematic structural view of a segmented induction quenching coil and a shaft to be processed according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a first sectional heating element and a second sectional heating element according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a segmented induction quenching coil according to an embodiment of the present invention.

Reference numerals:

100. a segmented induction quenching coil; 200. a shaft to be processed;

1. a first segmented heating element; 11. a first body; 111. a first input port; 112. a first output port;

2. a second segmented heating element; 21. a second body; 211. a second input port; 212. a second output port; 22. a second chute;

3. a connection unit; 31. a first mounting member; 311. a first chute; 3111. a threaded hole; 32. a second mount; 321. a limiting plate; 33. an adjustment assembly; 331. an elastic member; 332. adjusting the bolt;

4. a third section heating element; 41. a third body;

5. a fourth segmented heating element; 6. a fifth section heating element.

Detailed Description

In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution of the present invention is further described below by referring to the drawings and the detailed description.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, or the directions or positional relationships that are usually placed when the product is used, and are only for convenience of description of the present invention, and do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", and the like are used for descriptive purposes only or to distinguish between different structures or components and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Details of the present embodiment are described below with reference to fig. 1 to 3. The embodiment provides a segmented induction quenching coil, which is used for inductively heating a shaft 200 to be processed, wherein the segmented induction quenching coil 100 comprises at least two hollow heating elements and a connecting unit 3, the at least two heating elements are arranged at one side of the shaft 200 to be processed, the at least two heating elements are sequentially connected along the axial direction of the shaft 200 to be processed, an input port is arranged at the upper end of each heating element, an output port is arranged at the lower end of each heating element, the output port of the heating element positioned above the heating element in two adjacent heating elements is connected with the input port of the heating element positioned below the heating element, and the two adjacent heating elements can relatively slide along the radial direction of the shaft 200 to be processed; the connecting unit 3 comprises a first mounting part 31, a second mounting part 32 and an adjusting component 33, wherein the first mounting part 311 is provided with a first sliding groove 311, the first mounting part 31 is connected with one of the two adjacent sections of heating members, one end of the second mounting part 32 is slidably arranged in the first sliding groove 311, the other end of the second mounting part 32 is connected with the other of the two adjacent sections of heating members, and the adjusting component 33 can enable the second mounting part 32 to move relative to the first mounting part 31 along the radial direction of the shaft to be processed 200.

To the great axle diameter change axle 200 of waiting to process, the segmentation induction quenching coil 100 that this embodiment provided includes two section at least heating members, the quantity of heating member can carry out corresponding increase and decrease according to the axle section quantity of waiting to process axle 200, the adjusting part 33 of the coupling unit 3 makes two sections adjacent heating members can follow the radial motion of waiting to process axle 200, can carry out corresponding regulation according to the change of waiting to process every section axle diameter of axle 200 self, also can satisfy different processing requirements, carry out corresponding regulation according to required heating member and wait to process the clearance distance between the axle 200, realize the segmentation heating regulation of axle type part, improve the heating methods, improve heating efficiency, reduction in production cost. The heating member adopts inside hollow structure, and cooling liquid can follow the inside passage circulation flow of heating member, when being in operating condition, reduces heating member self temperature, makes work maintain normal temperature around, improves operating personnel's travelling comfort.

Further, as shown in fig. 2 and fig. 3, in an embodiment of the present invention, the segmented induction quenching coil 100 specifically includes two heating elements, namely a first segmented heating element 1 and a second segmented heating element 2, the first segmented heating element 1 includes a first body 11, the first body 11 is provided with a first input port 111 and a first output port 112, and the first input port 111 and the first output port 112 may be disposed up and down along a diagonal of the first body 11; the second segmented heating element 2 comprises a second body 21, the second body 21 is provided with a second input port 211 and a second output port 212, at least part of the outer side wall of the second input port 211 is surrounded by a second sliding groove 22, the first output port 112 can be inserted into the second input port 211 from top to bottom, part of the outer wall surface of the first body 11 is abutted with the inner wall surface of the second sliding groove 22, and can move in the second sliding groove 22 along the radial direction of the shaft 200 to be processed; the first mounting piece 31 of the connection unit 3 is connected to the first body 11, and the second mounting piece 32 is connected to the second body 21. In this embodiment, in the first delivery outlet 112 of first segmentation heating member 1 pegged graft the second input port 211 of second segmentation heating member 2, through the setting of waiting to process the radial extension of axle 200 along waiting of second spout 22, appear rocking or dropping when avoiding first body 11 to remove relative second body 21, further guarantee segmentation induction quenching coil 100's segmentation mobility stability, improve the quenching effect, improve machining efficiency.

Further, as shown in fig. 3, the adjusting assembly 33 includes an elastic member 331 and an adjusting bolt 332, the elastic member 331 is disposed between the side wall of the first sliding slot 311 close to the first body 11 and the portion of the second mounting member 32 located in the first sliding slot 311, the elastic member 331 is configured to make the second mounting member 32 have a tendency to move away from the first body 11, a threaded hole 3111 is penetratingly disposed on the side wall of the first sliding slot 311 away from the first body 11, and the adjusting bolt 332 is inserted into the threaded hole 3111 and abuts against the second mounting member 32. The elastic member 331 can be a compression spring, the compression spring is always in a compressed state, so that the second mounting member 32 is always abutted to the end of the adjusting bolt 332, when the adjusting bolt 332 is rotated to move in the direction close to the first body 11, the second mounting member 32 can immediately push the second body 21 to be close to the first body 11 along the second sliding groove 22, the gap between the second body 21 and the shaft 200 to be processed is shortened, and the heating effect is improved.

Further, a limiting plate 321 is disposed at a part of the end of the second mounting member 32 located at the first sliding slot 311, and the width of the limiting plate 321 is greater than the slot width of the first sliding slot 311. When the second mounting part 32 moves relative to the first mounting part 31, the second mounting part 32 can be kept moving along the set direction, and the second mounting part 32 can be prevented from slipping out of the first sliding groove 311 to influence the adjustment precision.

Further, first installed part 31 is equipped with first joint portion, and second installed part 32 is equipped with second joint portion, and first joint portion and second joint portion joint respectively on the outer wall of first body 11 and second body 21. Adopt the joint mode, make things convenient for the assembly of multistage heating member to dismantle, when breaking down, also be convenient for maintenance personal to change the part.

Further, as shown in fig. 1, the segmented induction quenching coil 100 further includes a third segmented heating element 4, a fourth segmented heating element 5 and a fifth segmented heating element 6 which are sequentially inserted into each other, the third segmented heating element 4 includes a third body 41, a third input port and a third output port which are mutually communicated are arranged at two ends of the third body 41, and the third input port is inserted into a second output port 212 of the second segmented heating element 2; the fourth segmented heating element 5 comprises a fourth body, a fourth input port and a fourth output port which are communicated with each other are arranged at two ends of the fourth body, and the fourth input port is inserted into the third output port of the third segmented heating element 4; the fifth subsection heating element 6 comprises a fifth body, a fifth input port and a fifth output port which are communicated with each other are arranged at two ends of the fifth body, and the fifth input port is connected with a fourth output port of the fourth subsection heating element 5 in an inserting mode. The third input port and the third output port at the two ends of the third body 41 extend through in the vertical direction, and the other corresponding segment heating elements can be inserted to realize the extension of the heating length of the whole segment induction quenching coil 100. When a long shaft section exists in the shaft 200 to be processed, the application range of the segmented induction quenching coil 100 is further expanded by additionally arranging the third segmented heating element 4.

Furthermore, the heating element is a copper pipe with a rectangular channel inside, and the heat conduction efficiency is improved and the resistance value is reduced by utilizing the characteristics of copper metal.

Further, first installed part 31 and second installed part 32 adopt non-conductive material to make, avoid taking place the personnel and electrocute in the adjustment process. Specifically, in the present embodiment, the first mounting member 31 and the second mounting member 32 are made of plastic. On one hand, the insulating and non-conducting properties of the plastic material are utilized; on one hand, the plastic material has low price and is easy to be integrally formed, and the plastic material is convenient to manufacture by adopting injection molding and can reduce the production cost; on the other hand, the plastic material is corrosion resistant, and the service life can be prolonged.

The installation and use of the segmented induction quenching coil 100 provided in this embodiment are as follows: 1) sequentially assembling from top to bottom; 2) starting to adjust from the maximum shaft diameter; 3) a plurality of rows of segmented induction quenching coils 100 may be arranged around the shaft to be machined 200; 4) the shaft to be processed 200 needs to be rotated around the axis when heated.

The embodiment also provides a heat treatment device, which comprises an alternating current power supply and the segmented induction quenching coil 100 as described above, wherein the alternating current power supply is respectively electrically connected with two ends of the segmented induction quenching coil 100. Specifically, an ac power source is electrically connected to the uppermost end and the lowermost end of the segmented induction quenching coil 100, respectively. Further optionally, a frequency converter may be further added at one end of the ac power supply to provide a corresponding current alternating frequency according to the processing requirement of the shaft 200 to be processed.

Further, the heat treatment equipment further comprises a cooling circulation device, an output end of the cooling circulation device is communicated with one end of the segmented induction quenching coil 100, and a reflux end of the cooling circulation device is communicated with the other end of the segmented induction quenching coil 100. Specifically, cooling cycle device's output and the topmost intercommunication of segmentation induction quenching coil 100, the reflux end and the bottommost intercommunication of segmentation induction quenching coil 100 reduce the heat conduction influence of heating member self to external environment. Further optionally, the heat treatment equipment further comprises a fast spraying device, after the shaft to be processed 200 is heated, the fast spraying device is aimed at the shaft to be processed 200 in the red hot state to rapidly spray a large amount of cooling water, so as to complete the final stage of the quenching treatment of the shaft to be processed 200.

The working principle of the heat treatment equipment provided by the embodiment is as follows: the principle of electromagnetic induction is utilized to enable the part to be processed to cut magnetic lines of force in an alternating magnetic field, induced current is generated on the surface of the part to be processed, the surface of the part is rapidly heated in an eddy current mode according to the skin effect of alternating current, and quenching is carried out to realize quenching processing.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious modifications, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A segmented induction quenching coil for induction heating a shaft (200) to be machined, comprising:

the heating device comprises at least two sections of heating elements with hollow interiors, wherein the heating elements are arranged on one side of a shaft (200) to be processed, the at least two sections of heating elements are sequentially connected along the axis direction of the shaft (200) to be processed, an input port is arranged at the upper end of each heating element, an output port is arranged at the lower end of each heating element, the output port of the heating element positioned above the heating element in two adjacent heating elements is connected with the input port of the heating element positioned below the heating element, and the two adjacent heating elements can relatively slide along the radial direction of the shaft (200) to be processed;

the connecting unit (3), the connecting unit (3) is equipped with first installed part (31), second installed part (32) and adjusting part (33) of first spout (311) including being equipped with in, first installed part (31) and adjacent two one in the heating member is connected, the one end of second installed part (32) is slided and is located in first spout (311), the other end and adjacent two another in the heating member is connected, adjusting part (33) can make second installed part (32) are relative first installed part (31) are followed the radial movement of waiting to process axle (200).

2. The segmented induction quench coil of claim 1 comprising two heating elements, each of:

a first segmented heating element (1) comprising a first body (11), the first body (11) being provided with a first inlet (111) and a first outlet (112);

second segmentation heating member (2), including second body (21), second body (21) are equipped with second input port (211) and second delivery outlet (212), at least part encloses on the lateral wall of second input port (211) and is equipped with second spout (22), first delivery outlet (112) insert from the top down second input port (211), the partial outer wall surface of first body (11) with the internal wall looks butt of second spout (22), and can follow in second spout (22) treat the radial movement of processing axle (200).

3. The segmented induction quenching coil according to claim 2, wherein the adjusting assembly (33) comprises an elastic member (331) and an adjusting bolt (332), the elastic member (331) is disposed between the side wall of the first sliding groove (311) close to the first body (11) and the portion of the second mounting member (32) located on the first sliding groove (311), the elastic member (331) is configured to enable the second mounting member (32) to have a movement tendency away from the first body (11), a threaded hole (3111) is penetratingly disposed on the side wall of the first sliding groove (311) far from the first body (11), and the adjusting bolt (332) is disposed through the threaded hole (3111) to abut against the second mounting member (32).

4. The segmented induction quenching coil according to claim 3, wherein the second mounting part (32) is provided with a limit plate (321) at a partial end of the first sliding groove (311), and the width of the limit plate (321) is larger than the groove width of the first sliding groove (311).

5. The segment induction quenching coil as claimed in claim 2, wherein the first mounting member (31) is provided with a first clamping portion, the second mounting member (32) is provided with a second clamping portion, and the first clamping portion and the second clamping portion are clamped on the outer wall surfaces of the first body (11) and the second body (21), respectively.

6. The segmented induction quench coil of claim 5 further comprising:

the third sectional heating element (4) comprises a third body (41), a third input port and a third output port which are communicated with each other are arranged at two ends of the third body (41), and the third input port is inserted into the second output port (212) of the second sectional heating element (2);

the fourth segmented heating element (5) comprises a fourth body, a fourth input port and a fourth output port which are communicated with each other are arranged at two ends of the fourth body, and the fourth input port is inserted into the third output port of the third segmented heating element (4);

fifth subsection heating member (6), fifth subsection heating member (6) includes the fifth body, the both ends of fifth body are equipped with the fifth input port and the fifth delivery outlet that link up each other, the fifth input port with fourth subsection heating member (5) the fourth delivery outlet is pegged graft.

7. The segmented induction quench coil of claim 6 wherein the heating element is a copper tube having a rectangular channel therein.

8. The segmented induction quench coil of claim 1 wherein said first mounting member (31) and said second mounting member (32) are each formed of a plastic material.

9. A thermal processing apparatus comprising an ac power source and the segmented induction quench coil of any of claims 1-8, wherein the ac power source is electrically connected to each end of the segmented induction quench coil.

10. The thermal processing apparatus of claim 9, further comprising a cooling circulation device, an output of said cooling circulation device being in communication with one end of said segmented induction quench coil, and a return of said cooling circulation device being in communication with the other end of said segmented induction quench coil.

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